艾禧CD2003GP收音机电路说明书

D2003 D2003 TO-220B z z z z z z 1.6Ω , : 5 4 3 2 1 10W D2003 Tamb=25 (50mS) Vcc 40 V Vcc 28 V Vcc 18 V 3.5 A 4.5 A 20 W Io ) (Tcase=90 PD Tstg -40 150 Vcc=14.4V Tamb=25 (4 (5 AC ) Vcc 8 Vo 6.1 Icc ) 18 V 6.9 7.7 V 44 50 mA ( Gv=40dB) RL=4Ω RL=2Ω THD=10% f=1kHz RL=3.2Ω Po 5.5 6 9 10 12 RL=1.6Ω Vsat 300 Po=0.5W; RL=2Ω Po=6W; RL=4Ω 10 Vi Po=1W; RL=4Ω 0.05W≤Po≤4.5W; RL=4Ω; f=1kHz 0.05W≤Po≤7.5W; RL=2Ω; f=1kHz f=1kHz ; 1 ; f=1kHz; RL=4Ω ; f=1kHz; RL=4Ω BW (-3dB)=10~25000Hz BW (-20dB)=4~27000Hz mV 55 50 Po=10W; RL=2Ω (-3dB) mV 14 Po=0.5W; RL=8Ω f=1kHz W 7.5 BW 40 0.15 THD Ri Gv Vn 15000 % 0.15 70 150 kΩ 80 39.5 Hz 40 40.5 1 5 dB µV D2003 BW (-3dB)=10~25000Hz BW (-20dB)=4~27000Hz Po=6W; RL=4Ω; f=1kHz In Rg=10kΩ; RL=4Ω; 200 69 η Po=10W; RL=2Ω; f=1kHz Vripple=0.5V; f=100Hz 60 % 65 SVR 30 36 dB +Vcc mA Vi 5 D2003 2 3 1000uF 100nF D2003 4 2 3 C4 Cx 39nF Rx=20*R2 1 2.2 Rx 470uF R2 R1220 C5 Cx=1/(2πb*R1) +Vcc 100nF C3 C1 1 5 C2 39 Rx Cx 39nF Rx=20*R2 470uF 4 C4 1000uF R1 220 R3 D2003 2 3 1 C5 Cx=1/(2πb*R1) 100nF 1.0uF 2.2 Vi R2 V RL 39 C4 1000uF R1 220 C2 R2 2.2 470uF 4 1.0uF 100uF 1 R3 100nF 100uF 100nF C3 C1 1 5 RL 100nF +Vcc pA RL D2003 5 4 4 RL=4 15uF C4 0.1uF 5 10uF 16 20W , C3 1 C4 (SVR RL=4 0.1uF D2003 2 3 4 0.1uF 5 4 40dB) Vcc=14.4V 1 0.1uF D2003 2 3 0.1uF 620 1nF 15uF C3 D2003 2.2uF 2 3 16 C3 1 430 D2003 2 3 0.1uF 2.2uF 5 200 1 Vcc=14.4V 0.1uF 1 (Po=18W) D2003 (RL=4Ω) (RL=2Ω) (Cx)